Peoptix - Infrared Optics & Custom Optical Components
Peoptix - Infrared Optics & Custom Optical Components
Zinc Sulfide (ZnS) Optical Windows are core optical window materials for both mid-wave (MWIR) and long-wave (LWIR) infrared bands, available in both native and multispectral grades and fabricated via CVD and hot-pressing processes. They feature high transmittance within the 8–14 μm LWIR band, superior optical uniformity and low light scattering, coupled with outstanding mechanical strength and corrosion resistance to deliver stable protection for internal optical elements.
|
Material |
CVD ZnS |
Multispectral ZnS |
|
Transmission Range |
1- 14.0 μm |
0.35- 14.0 μm |
|
Refractive Index |
2.198@10.2μm |
2.20@10μm |
|
Density |
4.09 g/cm³ |
4.09 g/cm³ |
|
Coefficient of Thermal Expansion (CTE) |
6.8 x 10⁻⁶ /°C |
6.5 x 10⁻⁶ /°C |
|
Thermal Conductivity |
17.9 W/m·K@298K |
26 W/m·K@298K |
|
Knoop Hardness |
210-240 kg/mm² |
160 kg/mm² |
|
Absorption Coefficient(1/cm) |
< 0.2@10.6μm |
< 0.05@10.6 μm |
|
Young's Modulus (GPa) |
74.5GPa |
85.5 GPa |
|
Poisson's Ratio |
0.29 |
0.28 |
|
Parameters |
Regular |
High precision |
|
Dimension |
Φ5mm-Φ300mm |
|
|
Diameter Tolerance |
±0.1mm |
±0.02 mm |
|
Thickness Tolerance |
±0.05 mm |
+0/-0.01 mm |
|
Parallelism (arcmin) |
< 1′ (1 arcmin) |
< 30″ (30 arcsec) |
|
Surface Quality |
60-40 |
20-10 |
|
Surface Flatness (P-V) |
PV<0.7 λ@632.8nm |
PV<λ/10@632.8nm |
|
Coating |
Custom AR , DLC+AR Coating |
|
Application Fields
